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Monel 400 vs. EN 1.4422 Stainless Steel

Monel 400 belongs to the nickel alloys classification, while EN 1.4422 stainless steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is Monel 400 and the bottom bar is EN 1.4422 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 160
200
Elongation at Break, % 20 to 40
17
Fatigue Strength, MPa 230 to 290
380
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 62
76
Shear Strength, MPa 370 to 490
520
Tensile Strength: Ultimate (UTS), MPa 540 to 780
850
Tensile Strength: Yield (Proof), MPa 210 to 590
630

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Maximum Temperature: Mechanical, °C 1000
760
Melting Completion (Liquidus), °C 1350
1450
Melting Onset (Solidus), °C 1300
1410
Specific Heat Capacity, J/kg-K 430
470
Thermal Conductivity, W/m-K 23
16
Thermal Expansion, µm/m-K 14
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.3
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 3.4
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 50
11
Density, g/cm3 8.9
7.9
Embodied Carbon, kg CO2/kg material 7.9
2.7
Embodied Energy, MJ/kg 110
37
Embodied Water, L/kg 250
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 180
130
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 1080
1000
Stiffness to Weight: Axial, points 10
14
Stiffness to Weight: Bending, points 21
25
Strength to Weight: Axial, points 17 to 25
30
Strength to Weight: Bending, points 17 to 21
25
Thermal Diffusivity, mm2/s 6.1
4.3
Thermal Shock Resistance, points 17 to 25
31

Alloy Composition

Carbon (C), % 0 to 0.3
0 to 0.020
Chromium (Cr), % 0
11 to 13
Copper (Cu), % 28 to 34
0.2 to 0.8
Iron (Fe), % 0 to 2.5
76.8 to 83.5
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 0
1.3 to 1.8
Nickel (Ni), % 63 to 72
4.0 to 5.0
Nitrogen (N), % 0
0 to 0.020
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 0.5
Sulfur (S), % 0 to 0.024
0 to 0.0030